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1、Tetra Workshop 2Fin ConfigurationICEMCFD/AI*Environment 5.0ICEM CFD / AI*Environment 5.0WorkshopStart ProjectStart ProjectFile - New Project Browse to FinConfig directoryEnter File name as finOpen geometry file geometry.tinCreate parts for surfacesInlet, Outlet, Symm, Walls, Leading, Trailing, Tip,
2、Pres_SuctDelete Empty Parts and set Good ColorsINLETSYMMOUTLETWALLSPRES_SUCTTIPLEADINGTRAILINGDate2ICEM CFD / AI*Environment 5.0WorkshopBuild TopologyBuild TopologyGeometry - Repair Geometry - Build Diagnostic TopologyUse default Tolerance 0.06Check Filter points and Filter curvesCheck Create newUse
3、 other defaultsApplyCreates curves/points at hard features and part boundariesDate3ICEM CFD / AI*Environment 5.0WorkshopMaterial PointCreate Material Point Fluid volume outside fin Geometry - Create Body - Material Point Change Part to Fluid_Matl Set Location to Centroid of 2 points Select two scree
4、n locations, A A and B B so material point is outside fin and inside “box” Apply Display Bodies and rotate the model to confirm material point location Save projectFLUID_MATLFLUID_MATLA AB BDate4ICEM CFD / AI*Environment 5.0WorkshopGlobal Mesh SizeGlobal Mesh SizeMesh - Set Global Mesh SizeSet Scale
5、 factor to 0.08Set Max element to 256.0Enable Natural Size Set Size to 0.5Set Refinement to 16Enabling Display shows representative tets for the sizes just setNatural Size will resolve curvature and feature proximityDate5ICEM CFD / AI*Environment 5.0WorkshopSurface Mesh SizeSurface Mesh Size Mesh -
6、Set Surface Mesh Size Select surfaces individually or by part Inlet, Outlet, Walls, Symm Maximum element size = 128 Leading, Trailing, Pres_Suct - Maximum element size = 32 Tip - Maximum element size = 4 Yields at least two elements across tip Show surface tetra sizes Right-click on Surfaces from th
7、e Geometry branch of the tree Select Tetra Sizes Save projectDate6ICEM CFD / AI*Environment 5.0WorkshopCreate PointsCreate PointsFirst create points to define mesh densityGeometry - Create Point - Explicit Coordinates(12, 0, 0) and (12, 0, 15) Apply after each#2#1#3#4Date7ICEM CFD / AI*Environment 5
8、.0WorkshopCreate Mesh DensityCreate Mesh DensityDefine region in space for volumetric refinementFin wake regionMesh - Create Mesh Density with Type = Line (see other types)Select the two points just createdSet Size = 4 and Width = 7Largest element within region is Size X Scale factorApplyDelete the
9、points just createdLeaving these points could overconstrain the meshSave project#1#2#3#4#6#5Date8ICEM CFD / AI*Environment 5.0WorkshopTetra MeshingTetra MeshingMesh - Mesh TetSelect From geometry for MethodEnable Run as batch processApplyMesh loads upon completionView effects of Natural Size and Mes
10、h DensitySurface mesh PartsCut planesDate9ICEM CFD / AI*Environment 5.0WorkshopTetra QualityTetra QualityQuality reported as a circumsphere ratioQuality of 1.0 is an isotropic Tet or TriQuaility approaches 0.0 as Tet or Tri becomes distortedRinsideRoutsideRinside/Routside(Rinside/Routside )idealQual
11、ity = Date10ICEM CFD / AI*Environment 5.0WorkshopMesh SmoothingMesh SmoothingEdit Mesh - Smooth Mesh GloballyAdjust histogram using ReplotSet Up to quality to 0.4Use other defaultsApplySave project#2#1#4#3BEFOREAFTERDate11ICEM CFD / AI*Environment 5.0WorkshopAdd PrismsAdd prismsTry adding 3 prism layers with a 1.2 Height ratioSpecify the LEADING, PRES_SUCT, TIP and TRAILING partsDont specify an Initial heightUses automatic local sizingMesh cut plane near fin tipDate12
